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Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating

Title: Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type.
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Name(s): O'Connor, Shannon M, author
Beam, Christopher R, author
Luo, Xiaochen, author
Cohen, L Adelyn, author
VanHuysse, Jessica L, author
Emery, Robert E, author
Turkheimer, Eric, author
Keel, Pamela K, author
Burt, S Alexandra, author
Neale, Michael, author
Boker, Steven, author
Klump, Kelly, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2017-02-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Prior twin studies provide support for a single "common factor" that contributes genetic and environmental risk to a range of disordered eating symptoms. However, the common factor may be indexed less well by binge eating (BE) than other symptoms of eating disorders [i.e., body dissatisfaction (BD) and weight preoccupation (WP)]. We sought to explore the presence of a common factor and test whether loadings differed across three key symptoms (i.e., BE, BD, WP). Disordered eating was assessed via self-report in 631 female twin pairs from the Michigan State University Twin Registry. We detected a common disordered eating factor that was influenced primarily by additive genetic and nonshared environmental influences. However, we observed different loadings on this common factor by symptom type, as factor loadings for BD and WP were stronger than that for BE. Moreover, the residual environmental and/or genetic variances (i.e., those that are independent of the common factor) were larger in BE than those of BD or WP. Although all three symptoms share a common set of genetic and environmental influences, risk for BE may involve additional genetic, biological, and environmental factors that are not shared with other symptoms of eating pathology. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:157-161).
Identifier: FSU_pmch_27636116 (IID), 10.1002/eat.22625 (DOI), PMC5291810 (PMCID), 27636116 (RID), 27636116 (EID)
Keywords: Binge eating, Body dissatisfaction, Common factor, Eating disorders, Twins, Weight preoccupation
Grant Number: R01 DA018673, R01 MH082054, R01 MH092377, T32 AG000037
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5291810.
Subject(s): Adolescent
Adult
Binge-Eating Disorder/genetics
Binge-Eating Disorder/psychology
Body Dysmorphic Disorders/genetics
Body Dysmorphic Disorders/psychology
Body Image/psychology
Body Weight/genetics
Bulimia/genetics
Bulimia/psychology
Child
Diseases in Twins/genetics
Emotions
Environment
Female
Gene-Environment Interaction
Humans
Michigan
Registries
Self Report
Social Environment
Twins/genetics
Young Adult
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_27636116
Owner Institution: FSU
Is Part Of: The International journal of eating disorders.
1098-108X
Issue: iss. 2, vol. 50

Choose the citation style.
O'Connor, S. M., Beam, C. R., Luo, X., Cohen, L. A., VanHuysse, J. L., Emery, R. E., … Klump, K. (2017). Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type. The International Journal Of Eating Disorders. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_27636116